He belonged to the Udalriching family and was a son of Adrian,[1] who had also held the county of Orléans, and possibly of Waldrada, a Nibelungid.
In 811, as count (comes), according to the Annales Fuldenses, he signed a peace treaty with the Vikings.
Odo, along with Heribert, son of William of Gellone, a relative, possibly his cousin, were exiled in April 830 by Lothair I and Orléans was confiscated.
In 834, while fighting Matfrid and Lambert I of Nantes, partisans of Lothair, Odo was killed as were his brothers William, Guy of Maine, and Theodo, abbot of Saint Martin of Tours.
[3] Their eldest daughter, Ermentrude, married Charles the Bald of West Francia.